List problems work OK-ish when a site is small, and right now this site is still small. However, it's already growing, and I think we all hope it will grow larger.
As a community grows (both in size and in age), list questions become harder to maintain. In my opinion, 14 answers is already too many. People coming in from google don't want to read through 14 answers. They want to read the accepted answer and maybe a couple more to get a different perspective. The more people you have and the longer the question's been around, the more answers a question accumulates until it's essentially useless. It takes us right back to the age of forums with 12 pages of discussion and no clear answer.
I suggest reading "Real Questions Have Answers" on the Stack Exchange blog, and this followup discussion on Meta Stack Exchange.
The crux of the issue is that most list questions don't have a single (or even a reasonably finite number) of possible answers. They're incompatible with the Stack Exchange format because there are far too many possible answers.
Your example of "where wild camping is permitted in Europe" contains a perfect example of the right and wrong way to ask these types of questions. The accepted answer has a self-contained list, a summary of which countries in Europe allow wild camping. To me, this is perfectly valid and very useful. A random person finding the post from Google could read that one answer, and have a decent idea of where wild camping is allowed. Mission accomplished.
Every other answer (disclaimer: I only skimmed a handful, as I said, nobody wants to read 14 answers) is only saying "well I know that wild camping is[n't] allowed in (location)". If there were one answer for every country in the EU, that would be 28 answers! Surely that is absurd.
The solution is similar to that for shopping questions: rather than posting an open-ended question, frame it to ask how, or otherwise restrict the scope of the question to encourage a canonical answer. For example, you could ask "Which European countries allow wild camping," and in the body of the question, specify that you would like to know an aggregate source for this information, not answers for each country.
My point is that a question whose answer requires a list is not inherently bad or off-topic, but a question that invites or requires an unlimited number of answers is bad. Word questions such that they encourage canonical answers which may contain lists, and it'll make the answer(s) much easier for you and future visitors to understand.